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Serving hundreds of leading biopharmaceutical companies globally:

Healthtrust
AstraZeneca
Covington
Baxter
Queensland Health
Merck
QuintilesIMS
Boehringer Ingelheim
Fuji

Generated: June 20, 2018

DrugPatentWatch Database Preview

Details for Patent: 6,572,873

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Which drugs does patent 6,572,873 protect, and when does it expire?

Patent 6,572,873 protects VARITHENA and is included in one NDA.

This patent has seventy patent family members in thirty-four countries.
Summary for Patent: 6,572,873
Title: Generation of therapeutic microfoam
Abstract:Improved therapeutic sclerosing microfoams and methods and devices for making them are provided that have advantage in producing a consistent profile injectable foam with minimal input by the physician yet using high volume percentages of blood dispersible gases, thus avoiding use of potentially hazardous amounts of nitrogen.
Inventor(s): Osman; Tariq (London, GB), Flynn; Sheila Bronwen (Nr. Stevenage, GB), Wright; David Dakin Iorwerth (High Wycombe, GB), Harman; Anthony David (Checkendon, GB), Boorman; Timothy David (Frinton on Sea, GB)
Assignee: BTG International Limited (London, GB)
Application Number:09/718,094
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation;

Drugs Protected by US Patent 6,572,873

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted
Provensis VARITHENA polidocanol SOLUTION;INTRAVENOUS 205098-001 Nov 25, 2013 RX Yes Yes ➤ Try a Free Trial ➤ Try a Free Trial A METHOD OF GENERATING AN INJECTABLE FOAM OF CONTROLLED DENSITY AND BUBBLE SIZE ➤ Try a Free Trial
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted

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Foreign Priority and PCT Information for Patent: 6,572,873

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9912356May 26, 1999

Non-Orange Book US Patents Family Members for Patent 6,572,873

For Orange Book-listed patents (shown in the main table above) generic applications must certify that the listed patents are expired, invalid, or will not be infringed by generic entry.

The non-Orange Book patents listed below do not require formal certifications, so they do not automatically impede generic entry. Instead, they represent potential opportunities for branded firms to block generic entry through patent infringment challenges.

Patent No. Title Estimated Patent Expiration
7,604,185 Generation of therapeutic microfoam ➤ Try a Free Trial
6,942,165 Generation of therapeutic microfoam ➤ Try a Free Trial
8,091,801 Generation of therapeutic microfoam ➤ Try a Free Trial
7,357,336 Generation of therapeutic microfoam ➤ Try a Free Trial
Patent No. Title Estimated Patent Expiration

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International Family Members for US Patent 6,572,873

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 025530 ➤ Try a Free Trial
Argentina 027175 ➤ Try a Free Trial
Argentina 089412 ➤ Try a Free Trial
Austria 313317 ➤ Try a Free Trial
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving hundreds of leading biopharmaceutical companies globally:

AstraZeneca
McKesson
Colorcon
UBS
Baxter
Federal Trade Commission
Express Scripts
Chubb
Merck

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